Ohms Law vs Tone Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ohms Law
This utility app calculates voltage, current, resistance, and power using Ohm's Law. Simply input any two values, and the app will compute the remaining two, providing a comprehensive tool for electrical calculations.
- Calculate Voltage
- Calculate Current
- Calculate Resistance
- Calculate Power
- Input two values to find others
Read full descriptionHide full description
Ohms Law calculator for calculating power, current, resistance and voltage. Ohms Law Calculator Features: - Calculate Voltage (volts) - Calculate Current (amps) - Calculate Resistance (ohms) - Calculate Power (watts) Input any two values to calculate the other two. Ohms Law Formula: V = Voltage I = Current R = Resistance P = Power V / IxR (or P) An advanced Ohms Law calculator to calculate Voltage, Current, Resistance & Power. How to use: 1) Enter any two values to calculate the other two. 2) Tap calculate. A Voltage Calculator, Current, Resistance, Power calculator all in one app. Check out our collection of electrical apps for iPhone and iPad https://www.procertssoftware.com/apps/
Tone Generator
Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.
- Sine, square, sawtooth, triangle wave generation
- Adjustable frequency via swipe
- Built-in hearing test sweep
- Speaker cleaning function
- Large frequency range
Read full descriptionHide full description
Tone Generator generates sine, square, sawtooth and triangle tone at a large frequency range. Frequency of the tones can be adjusted by swiping up or down on the screen. Tone Generator has a built-in feature to quickly sweep frequency of a sine tone to test your hearing. This feature is purely for fun and should not be used for any diagnostics. Tone Generator can also help remove dust and water from device's speakerphone by playing tones at various frequencies.
Screenshots
Verdict
The clearest difference is rating: Tone Generator at 4.8 against Ohms Law's 4.3. Tone Generator also leads on update cadence (every 4 months vs every 16 months) and ratings volume (138 vs 7). Ohms Law's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Tone Generator sells 1 one-off in-app purchase. Ohms Law asks for nothing beyond the download.
Tone Generator holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Tone Generator has 138 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 70% of Ohms Law's written reviews are positive against 84% of Tone Generator's.
Ohms Law ships an update every 16 months, Tone Generator every 4 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.
| Parameter | Ohms Law | Tone Generator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) | 4.8 (138 ratings) — better |
| Positive reviews | 70.0% of reviews | 83.7% of reviews — better |
| Number of ratings | 7 | 138 — better |
| Update frequency | Every 16 months | Every 4 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Pro Certs Software Ltd | Tevfik Yucek |
Customer experience
Ohms Law
Tone Generator
In-app purchases
Ohms Law
No in-app purchases
Tone Generator
- Remove Advertisements$2.99
Questions
Is Ohms Law free?
Is Tone Generator free?
Which has better reviews, Ohms Law or Tone Generator?
Do Ohms Law or Tone Generator have ads?
Which is updated more often, Ohms Law or Tone Generator?
Other comparisons
